Arrange the 9 toothpicks thus:
7 + 3
move
0.30 is the answer. to name an equivalent decimal, you simply add or take zeros away from the end of the number without changing the original number. Another example would be 1.42000, to name an equivalent decimal, you would take one or more of the zeros away from the end and make it 1.4200 or 1.42.
14000
Forty of them.
it 30
You can make 5 triangles out of 9 toothpicks. With 6 toothpicks, make a large triangle with 2 toothpicks for each side. Now, take individual toothpicks, and make a smaller triangle inside the larger one by joining the midpoints of the sides of the previous triangle. (The vertices of the smaller triangle are the midpoints of the sides of the larger one).
3+1+1=5 5 toothpicks
The number of toothpicks needed to make two towers on a bridge depends on the design and dimensions of the towers. Generally, a simple tower structure might require anywhere from 50 to 100 toothpicks each, resulting in a total of 100 to 200 toothpicks for two towers. More complex designs could require even more toothpicks. Ultimately, the exact count would depend on the specific architectural plan.
Not possible without breaking it.
move
Here are three ideas. #1 you could take toothpicks and marsh mellows and stick them together. #2 you could make blue jello for water (in river etc) put Swedish fish in the jello like fish and take 4 pretzel sticks and stick 'em in then tie stringy licorice to the ends then take toothpicks and stick them in between the licorice to make the deck. #3 you can take two apple slices and stick toothpicks with marshmallows into the insides of the apples. Hope that helped.
8
Not possible without breaking it.
Tara Donovan artwork: Toothpicks took about a month to get a 36 inch sized cube.
You arrange 12 toothpicks into a large square, subdivided into four squares : 2 toothpicks on each side and four more, one each from the middle of the sides to the center of the large square. Now you have four (small) squares. Take away 2 adjacent toothpicks from the ones in the center, and you have 2 squares : one remaining small one and the large one that has the small one inside it. (see related link)
i
The number of toothpicks needed to make a bridge depends on the design and size of the bridge. Simple designs may require around 50 to 100 toothpicks, while more complex structures can use several hundred. It's essential to balance strength and weight in the design for optimal performance. Ultimately, the specific requirements of the project will determine the exact number needed.